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|  DSH 426; s% d" B6 C( y' a* q
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| Triple insulated windings
; `. _5 ~$ C( j% F: q | 57.9, 57.9.4& V3 D" y2 Y& r) w# K* q
| 60601-1(ed.2);am1;am2
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Standard(s)- (year and edition):
- e. C; F* U. KIEC 60601-1:1988 Ed.2 Am1+Am2
1 K- W$ j% c1 L. l9 }% i: dSub clause(s): 57.9 57.9.4
; j) C/ s+ y7 \9 w- @% G5 D- dSheet n°: DSH-426
/ m0 Q$ h5 K7 z: Z6 d. USubject: Triple insulated windings& S& X3 K" L1 v6 I+ V. B2 K% l
Key words: Triple, insulated, winding, transformer
E. e/ f! M' x4 V" ?5 D( j8 PConfirmed by CTL at its 39th meeting, in Cologne% v% n& F9 ?9 q
Question:; G3 O1 J! |0 a! Z7 m# _# m
Many manufacturers are using a triple insulated winding wire on a transformer, where( E$ v" b/ W$ v1 d, S! m, w
DOUBLE, or REINFORCED INSULATION is required between the primary and the secondary
/ r# |( T1 v7 s3 m9 ]windings. Is this permitted?
3 h7 k }, [6 U! I* JDecision:6 m3 \/ L7 G6 u# o8 G: n
This is allowed, but precautions should be taken concerning possible mechanical damages to* ]$ q" W- i8 `6 T2 D
the wires. Other requirements of 57.9 shall be applied.
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发表于 2012-11-5 10:34
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